Image processing system and computer-readable recording medium

An image processing system comprising:

• an ordering information reader for obtaining print ordering information by reading a computer storage medium storing digital image data for at least one photographic image, digital print ordering information, which comprises multiple print orders each describing the content of a print order for said digital image data, and file validity indicator information indicating whether or not a corresponding print order is valid, such that said computer storage medium stores a new print order for said digital image data without revising a previously-stored print order for said digital image data, even when said new print order contradicts said previously-stored print order, and said digital print ordering information represents print order history information indicating a history of multiple print orders for said digital image data;
• a printer for processing and for generating at least one photographic print according to the obtained print ordering information;
• and
• a validity judging unit for evaluating file validity indicator information on the computer storage medium, the validity judging unit selecting a print order for reading by the reader based upon the evaluation of the file validity indicator information.